Regression with enums

[carmenbianca]

Steps to reproduce

Given the following code:

"""Docstring."""

from enum import Enum


class Person(Enum):
    """Docstring."""
    name = 'Bob'
    gender = 'Male'


print(Person.name.value.upper())

Run pylint file.py, with pylint 1.8.3 and astroid 1.6.2. The output is:

No config file found, using default configuration
************* Module file
E: 12, 6: Method 'value' has no 'upper' member (no-member)

------------------------------------------------------------------
Your code has been rated at 0.00/10 (previous run: 0.00/10, +0.00)

With astroid 1.6.1, these errors do not occur.

Current behavior

no-member errors occur.

Expected behavior

No errors occur.

python -c "from astroid import __pkginfo__; print(__pkginfo__.version)" output

1.6.2

[brycepg]

Person.name.value infers [<Const.NoneType l.6 at 0x7e9e127eaef0>] in 1.6.1
but
[<Const.NoneType l.6 at 0x7f59f3f4f0b8>, <BoundMethod value of enum.Enum at 0x140024321807416] in 1.6.2

Funny through it actually should be a Const.str